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Equalization R-22 R-404A R-134a
Internal 068U2235 068U2285 068U2205
External 068U2237 068U2287 068U2207
All valves above have ⁄” x ½”
solder ODF connections
and are designed for evaporator
temperatures -40°F to 50°F
(N charge). Other variations
available upon request.
R-22 Evaporator Temperature (°F)
Orice
Size
Item ID
Nominal capacity
of installed valve
1
(tons)
-40 -30 -20 -10 0 25 35 45
Rated Capacity
2
(tons)
0 068U1030 ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄
1 068U1031 ¼ ⁄ ⁄ ⁄ ⁄ ⁄ ¼ ¼ ¼
2 068U1032 ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ¼ ¼ ⁄
3 068U1033 ½ ⁄ ⁄ ¼ ¼ ⁄ ⁄ ⁄ ½
4 068U1034 ¾ ¼ ¼ ⁄ ⁄ ½ ½ ½ ¾
5 068U1035 1 ⁄ ⁄ ½ ½ ½ ¾ ¾ 1
6 068U1036 1½ ½ ½ ¾ ¾ ¾ 1 1 1½
7 068U1037 2 ¾ ¾ 1 1 1 1½ 1½ 2
8 068U1038 3 1 1¼ 1½ 1¾ 2 2½ 2½ 3
9 068U1039 4½ 1½ 1¾ 2 2½ 3 4 4¼ 4½
R-134a Evaporator Temperature (°F)
Orice
Size
Item ID
Nominal capacity
of installed valve
1
(tons)
-40 -30 -20 -10 0 25 35 45
Rated Capacity
2
(tons)
0 068U1030 ⁄ ½ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄
1 068U1031 ⁄ ½ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄
2 068U1032 ¼ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ¼ ¼
3 068U1033 ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ¼ ⁄ ⁄
4 068U1034 ½ ⁄ ⁄ ⁄ ¼ ⁄ ½ ½ ½
5 068U1035 ¾ ⁄ ¼ ¼ ⁄ ⁄ ½ ¾ ¾
6 068U1036 1 ¼ ⁄ ⁄ ½ ½ 1 1 1¼
7 068U1037 1½ ⁄ ½ ½ ¾ ¾ 1¼ 1⁄ 1½
8 068U1038 2 ½ ¾ ¾ 1 1⁄ 2 2 2⁄
9 068U1039 3 ¾ 1 1⁄ 1½ 2 3 3¼ 3½
R-404A Evaporator Temperature (°F)
Orice
Size
Item ID
Nominal capacity
of
installed valve
1
(tons)
-40 -30 -20 -10 0 25 35 45
Rated Capacity
2
(tons)
0 068U1030 ⁄ ½ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄
1 068U1031 ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄
2 068U1032 ¼ ⁄ ⁄ ⁄ ⁄ ⁄ ¼ ¼ ¼
3 068U1033 ⁄ ⁄ ⁄ ⁄ ⁄ ¼ ⁄ ⁄ ⁄
4 068U1034 ½ ⁄ ⁄ ¼ ⁄ ⁄ ½ ½ ½
5 068U1035 ¾ ¼ ¼ ⁄ ⁄ ½ ½ ¾ ¾
6 068U1036 1 ⁄ ⁄ ½ ½ ¾ 1 1 1
7 068U1037 1½ ½ ½ ¾ ¾ 1 1⁄ 1½ 1½
8 068U1038 2½ ¾ 1 1 1⁄ 1½ 2 2¼ 2½
9 068U1039 3½ 1 1⁄ 1½ 2 2¼ 3 3⁄ 3½
1. Valve Body Selection
2. Orice Selection
TUA/TUAE valve capacities are based on the installed orice. To select
the correct size, use one of the two methods below:
A. System characteristics: Select the orice using appropriate
refrigerant, evaporator temperature, and system capacity.
OR
B. Nominal capacity of the installed valve; Use the nominal capacity
of the originally installed valve and match with the nominal capacity
in chart (3rd. column from left.)
Danfoss TUA/TUAE Series Expansion Valves, Bodies and Orices
IF EXACT CAPACITY IS NOT FOUND, USE NEXT LARGER ORIFICE
Laser welded,
non replaceable
stainless steel
power-head
Bi-metal
connections for
fast and easy
brazing with no
wet wrap
Stainless steel capillary tube
and sensing bulb
Decades of experience
working with ice
machines ensures
optimal bulb charge
for fast and precise
capacity control
Replaceable orice allows for
capacity adaptions with a single
valve and enables access to the
screen for cleaning
Laser engraved
product information for
lasting identication of
valve type
VALVES